5/16"-18 X 8" Carriage Bolts, Round Head, Square Neck, Full Thread, Grade 5 Steel, Zinc

PART NUMBER:
BO004-51618X8X8-000090
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  • Also known as coach bolts, are typically used to fasten metal to wood.
  • The square neck under the head locks the bolt into place.
  • The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
  • Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
  • Can be used as a security fastener. The smooth head prevents unfastening from the head side.
DIMENSIONAL ATTRIBUTES
  • Diameter (Nominal): 5/16"
  • Thread Pitch: 18
  • Diameter (Dimension): 0.3125"
  • Diameter (Minimum): 0.298"
  • Diameter (Maximum): 0.324"
  • Length (Nominal): 8"
  • Thread Length (Nominal): 7.813"
  • Neck Width: 0.324"
  • Neck Height: 0.187"
  • Head Diameter (Minimum): 0.688"
  • Head Diameter (Maximum): 0.719"
  • Head Height, Overall (Minimum): 0.156"
  • Head Height, Overall (Maximum): 0.176"
PRODUCT ATTRIBUTES
  • Category: Carriage Bolts
  • System of Measurement: Inch
  • Brand: Aspen Fasteners®
  • Head Style: Round Head
  • Head Style Detail: Square Neck
  • Head Markings: Three radial lines 120 degrees apart and manufacturer ID
  • Thread Length: Full Thread
  • Thread Direction: Right-Hand Thread
  • Material: Steel
  • Material Grade: Grade 5
  • Coating: Zinc Plated
  • Coating Color: Clear
  • Standards and Specifications: ASME B18.5 and SAE J429
Product UPC Code:
698435005594
Brand:
Aspen Fasteners
Category:
Carriage Bolts
Coating:
Zinc Plated
Coating Color:
Clear
Diameter (Dimension):
0.3125"
Diameter (Maximum):
0.324"
Diameter (Minimum):
0.298"
Diameter (Nominal):
5/16"
Head Diameter (Maximum):
0.719"
Head Diameter (Minimum):
0.688"
Head Height, Overall (Maximum):
0.176"
Head Height, Overall (Minimum):
0.156"
Head Markings:
Three radial lines 120 degrees apart and manufacturer ID
Head Style:
Round Head
Head Style Detail:
Square Neck
Length (Nominal):
8"
Material:
Steel
Material Grade:
Grade 5
Neck Height:
0.187"
Neck Width:
0.324"
Order:
Machine Thread Fasteners
Product Class:
Externally Threaded Fasteners
Standards and Specifications:
ASME B18.5 and SAE J429
System of Measurement:
Inch
Thread Direction:
Right-Hand Thread
Thread Length:
Full Thread
Thread Length (Nominal):
7.813"
Thread Pitch:
18
cad_3d_file_url:
https://3d.aspenfasteners.com/assets/obj/BO004-51618X8X8.zip
cad_3d_viewer_url:
https://3d.aspenfasteners.com/viewer/?cad_model=obj/BO004-51618X8X8
specifications_document_url:
https://www.aspenfasteners.com/content/2D_PDF/product92/BO004-51618X8X8.PDF
Shop by Material:
Steel
Shop by System of Measurement:
Inch
POS:
BO004-51618X8X8-000090
  • Description
    • Also known as coach bolts, are typically used to fasten metal to wood.
    • The square neck under the head locks the bolt into place.
    • The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
    • Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
    • Can be used as a security fastener. The smooth head prevents unfastening from the head side.
    DIMENSIONAL ATTRIBUTES
    • Diameter (Nominal): 5/16"
    • Thread Pitch: 18
    • Diameter (Dimension): 0.3125"
    • Diameter (Minimum): 0.298"
    • Diameter (Maximum): 0.324"
    • Length (Nominal): 8"
    • Thread Length (Nominal): 7.813"
    • Neck Width: 0.324"
    • Neck Height: 0.187"
    • Head Diameter (Minimum): 0.688"
    • Head Diameter (Maximum): 0.719"
    • Head Height, Overall (Minimum): 0.156"
    • Head Height, Overall (Maximum): 0.176"
    PRODUCT ATTRIBUTES
    • Category: Carriage Bolts
    • System of Measurement: Inch
    • Brand: Aspen Fasteners®
    • Head Style: Round Head
    • Head Style Detail: Square Neck
    • Head Markings: Three radial lines 120 degrees apart and manufacturer ID
    • Thread Length: Full Thread
    • Thread Direction: Right-Hand Thread
    • Material: Steel
    • Material Grade: Grade 5
    • Coating: Zinc Plated
    • Coating Color: Clear
    • Standards and Specifications: ASME B18.5 and SAE J429
    Product UPC Code:
    698435005594
  • 3D Product View

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